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Tamiku [17]
3 years ago
9

Rolex worked 40 hours last week she had $74 deducted from his earning for taxes . if he had $286 left after the deduction how mu

ch does he earn per hour.
Mathematics
1 answer:
Mkey [24]3 years ago
6 0
<span>Let's find out what Rolex made BEFORE the reduction.
$286 + $74 = $360

To find out what he makes each hour, we divide $360 by 40 hours.
Rolex's Earning Per Hour = $360/40 hours
Rolex's Earning Per Hour = $9 per hour
  </span>
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Can someone answer questions 20-24 I need it for my math homework
navik [9.2K]
You know you have to draw the triangles right?
3 0
2 years ago
Evaluate the double integral ∬Ry2x2+y2dA, where R is the region that lies between the circles x2+y2=16 and x2+y2=121, by changin
olga2289 [7]

Answer:

See answer and graph below

Step-by-step explanation:

∬Ry2x2+y2dA

=∫Ry.2x.2+y.2dA

=A(2y+4Ryx)+c

=∫Ry.2x.2+y.2dA

Integral of a constant ∫pdx=px

=(2x+2.2Ryx)A

=A(2y+4Ryx)

=A(2y+4Ryx)+c

The graph of y=A(2y+4Ryx)+c assuming A=1 and c=2

8 0
3 years ago
Part A: Billy rented a canoe at $14 for 2 hours. If he rents the same canoe for 5 hours, he has to pay a total rent of $29. Writ
zepelin [54]

Part A)

So we need the graph to pass through these points:

time = 2 and price=$14 -> (2,14)

time= 5 and price = $29 -> (5,29)

Standard form:

Ax+By = C

Let’s replace the points:

A*2+B*14=C

A*5+B*29=C

Let’s eliminate variables:

(A*2+B*14)-(A*5+B*29)=C-C

A*2+B*14-A*5-B*29=0

-3A-15B=0

-3A=15B

A=15B/-3

A=-5B

There are several numbers that verify this proportion. For example, if B=1, A=-5 (you can try others, there is not only 1 correct answer).

So we can make this equation:

-5x+y=C

Then we can calculate C using one point:

-5*2+14=C

-10+14=C

4=C

So one of the possible equations is: -5x+y=4

(Remember there are multiple correct answers for this item)

You can verify it with the other point:

-5*5+29=-25+29=4 ->OK

 

Part B)

Whatever you have found in Part A, you will find the same in Part B when you convert it to function notation. All you have to do is clear y:

-5x+y=4

y=4+5x

So the equation is: f(x)=4+5x


Part C)

First of all, you have to find f(0)

f(x)=4+5x

f(0) =4+5*0=4+0=0

f(0) is ALWAYS the constant not multiplied by x.

So you know it has to cross the y axes in y=4

Now let’s put 0 as y-value:

4+5x=0

5x=0-4=-4

x=-4/5

So now you know it has to cross the x axes in x=-4/5.

So you can put those intersections in the graph and you draw the line through those points. Labels: horizontal axes is x, and in this case represents time; vertical axes is y, and in this case represents price.

Remember there are other methods, too :)

5 0
3 years ago
Alvin's age is three times Elgas age. The sum of their ages is 36. What is Elgas age?
olchik [2.2K]

Answer:

Elgas is 9 years old.

Step-by-step explanation:

Alvin: 3 x Elgas

36: Alvin + Elgas

36 / 4 : 9

Elgas: 9

Alvin: 27

To check: 27 + 9= 36

3 0
3 years ago
During a softball game, Sara threw 70 pitches. Of those pitches, 29 were strikes. What portion of the pitches that Sara threw we
EleoNora [17]
Answer: 0.414


29/70=0.41428571
The thousands place is the third place.
5 0
3 years ago
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